I have a 3d MKV but I don't have enough glasses for everyone so I'd like to just watch it in 2d.
I thought this would be a much talked about issue, not so much.

I found the options for "Cropadd" filter in VLC to crop so many pixels from the left/right/top/bottom - but Cropadd is missing from the filter-enable list! ... which is not in alphabetical order (lol) and after 6 reads up and down the list, I just don't see it....

So I've installed GOM player and looking at its options. (doesn't work)
Splash and PotPlayer are also a no-go.

Is there a solution for this? It seems a simple thing to just show the left or right side!